4: Dead or Alive | Wonders of the Solar System
Professor Brian Cox travels to the tallest mountain on Earth to show how something as basic as a planet's size can make the difference between life and death.
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8: Coasts | The Blue Planet
David Attenborough narrates a natural history of the oceans, examining how animals from in and around the sea use the constantly changing coastal areas.
7: Tidal Seas | The Blue Planet
David Attenborough narrates a natural history of the oceans. As snails surf the waves in pursuit of a meal, how do the tides create opportunities for marine life?